Baby nursing and feeding bottle



Oct. 6, 1959 R. K. LUNDEN BABY NURSING AND FEEDING BOTTLE Filed June 9,1958 Robert K. Lunden INVENTOR.

BY y 4u/#wy M0515" listet-Staf@ Patent O y 2,901,485 BABY NURSING ANDFEEDnvG BoTrLE Raben K. Landen, Bound Brook, NJ. Application June 9,195s, serial Nb. 740,735 4 claims. (ci. 215-1'1) The present inventionrelates to new and useful improvements in baby bottles and has for itsprimary object to provide, in a manner as hereinafterset forth, a deviceof this character which maybe used for feeding either liquid orsemi-solid foods, thus permitting the continued use of the bottle as theinfant grows into childhood.'

Another very important object of the invention is to provide acombination baby bottle of the aforementioned character comprisingnovel` means fonjpreventing the intake of air with the uid, therebyavoiding colic.

Still another important object of the present invention is to provide acombination baby bottle of the character described which includes uniquemeans for ejecting the food. A

Other objects of the invention are to provide a baby nursing and feedingbottle of the character set forth which will be comparatively 'simple inconstruction, strong, durable, compact, of light weight, which may beeasily cleaned and maintained in a highly sanitary condition at alltimes, and which may be manufactured at low cost.

These together with other objects and advantages which 'will becomesubsequently apparent reside in the details of construction andoperation as more fully hereinafter described and claimed, referencebeing had to the accompanying drawings forming a part hereof, whereinlike numerals refer to like parts throughout,` and in which:

Figure 1 is a View in vertical section through a baby bottle constructedin accordance with the present invention;

Figure 2 is a View in horizontal section, taken substantially upon theline 2-2 of Figure l;

Figure 3 is a horizontal sectional view, taken substantially on the line3-3 of Figure 1; and

Figure 4 is a perspective view of the feeding nipple.

Referring now to the drawing in detail, it will be seen that theembodiment of the invention which has been illustrated comprises asubstantially cylindrical container 5 of suitable rigid material. Thecontainer 5, which may also be of any desired dimensions, is open atboth ends. The container 5 comprises, on its upper end, a reduced,externally threaded neck 6 which terminates in an inturned flange 7.

Suspended in the container 5 is a removable bag or sack 8 of rubber orother suitable resilient material for the reception of the milk or food,as indicated at 9. The bag S comprises a reduced, open top portion 10which passes upwardly through the neck 6 of the container 5 andterminates in an outturned flange 11 which rests on the flange 7. Theange 11 receives thereon the base flange 12 of a nursing nipple 13having perforations 14 in the tip thereof. The assembly is secured by aretaining cap or ring 15 which is threaded on the neck 6 of thecontainer 5, said cap or ring including an inturned ange 16 which isengaged on the nipple flange 12. As shown to advantage in Figure 1 ofthe drawing, the walls of the bag 8 progressively decrease in thicknessfrom the top to the bottom of said bag.

Removably mounted on the lower end of the container 5 is a check valve17 for the entrance of air. The valve 17 includes a flexible disk 18having therein a centrally located opening 19. Mounted on the disk 18 isa relatively thin exible disk 20 having in its outer portion a pluralityof perforatons 21 which, it 'will be noted, are

i out of alignment with the opening 19.

. Mounted beneath the valve 17 is a removable air pump 22 of thecollapsible bulb type. The pump 22 includes an out-turned attachingflange 23 which is; yengaged beneath the disk 18 of the valve 17.Theassemf bly is secured through the medium of aretaining cap or ring 24which is screwed on the externally threaded lower end portion 25 of thecontainer 5, said cap or vring comprising an inturned flange 26 which isengaged beneath the ange 23 of the pump 22.L `The pump 22 furtherincludes an air intake 27.

In Figure 4 of the drawing, reference character 28 designates a feedingnipple which may be mounted on the bottle in lieu of the nipple 13. Thefeeding nipple 28 comprises in its tipf'a single, relatively largedischarge opening 29. In other respects the nipple 28 is substantiallysimilar to the nursing nipple 13. t l. It is thought that the use of thedevice 'will be readily apparent from a consideration of the foregoing.Briefly, when milk, for instance, is to be fed to the infant, the bag 8is filled therewith, as indicated at 9, and the nipple 13 is secured inposition. As the uid is consumed, the bag 8 contracts or collapses fromthe bottom up and air from the atmosphere is dralwn into the lowerportion of the container 5 beneath said bag. As shown in broken lines inFigure 1 of the drawing, the relatively thin, flexible upper disk 20 israised out of contact with the central portion of the disk 18,permitting the air to flow through the opening 19, between the disks andthrough the perforations 21 into the container, This air is trapped inthe container 5 by the check valve 17. In this manner the fluid 9 isprevented from dropping back in the bag 8 and the nipple 13 is keptsubstantially full thereof. The construction and arrangement is suchthat the infant may nurse with the bottle in any position. Also, no aircan become mixed with the milk or other fluid to be drawn therewith intothe mouth. If desired, the pump 22 may be removed when lthe infant is tonurse from the bottle. When the child is to be given semi-solid food,the bag 8 is filled to the desired level therewith and the nipple 28 ismounted on the bottle in lieu of the nipple 13. The pump 22 is thenactuated for forcing air runder pressure into the container 5 past thecheck valve 17. The air under pressure in the container 5 collapses thebag 8 and forces the food therefrom through the single opening 29 in thenipple 28 in an obvious manner. The device may quickly be completelydisassembled for cleaning orother purposes by simply unscrewing theretaining caps or rings 15 and 24. The walls of the bag 8, progressivelydecreasing in thickness from the top to the bottom thereof, cause saidbag to contract or collapse from the bottom up. y

The foregoing is considered as illustrative only of the principles ofthe invention. Further, since numerous modifications and changes willreadily occur to those skilled in the art, it is not desired to limitthe invention to the exact construction and operation shown anddescribed, and accordingly all suitable modifications and equivalentsmay be resorted to, falling Within the scope of the invention asclaimed.

What is claimed as new is as follows:

l. A baby bottle of the character described comprising: a container openat its upper end, a collapsible bag, for the reception of food,suspended in said container from said upper end thereof, a nipple on thecontainer communicating with the bag, and a check` valve on the lowerportion of the container for admitting air thereto and trapping said airtherein, the walls of said bag progre'ssively decreasing in thicknessfrom the top to the bottom thereof for causing said bag to collapse fromthe bottom up as the food is removed therefrom.

2, A baby bottle comprising: a substantially cylindrical containerhaving open upper and lower ends, a collapsible bag suspended in thecontainer from the upper endthereof, a nipple onthe containercommunicating with the bag, said bag 'for the reception of food, and lacheck valve on the lower end of the container for admitting airtheretobeneath the ,bag and for trapping the air in said container, said checkvalve including a lower disk having a centralV opening therein and anupper disk havinga multiplicity of perforations therein outwardly of theopening, and a ring threaded on the lower end yporofthe container forsecuring the check valve thereon,

said ring including anA inturned liange engaged beneath the lower disk;

3. A baby bottle of the character described comprising: a substantiallycylindrical container open at both ends, a collapsible bag for thereception of food, suspended in the container from one end thereof, anipple on one end of said container communicating with the bagrforreceiving the food therefrom, a pump on the other end of the containerfor injecting air under pressure thereinto, and a check valve interposedbetween the pump and the container for trapping the. air in saidcontainer.

4. A ,baby bottle of the character described comprist 4 I 'l ing: asubstantially cylindrical container open at both ends, a collapsiblebag, for the reception of food, suspended in the container from one endthereof, a nipple mounted on said one end of the container andcommunicating with the bag for receiving the food therefrom, ya checkvalve on the other end of the container for admitting air thereto andfor trapping said air therein, said check valve including a exible upperdisk having a plurality of perforations in its outer portion for thepasf References Cited in the tile of this patent UNITED STATES PATENTS921,387 Etter May 11, 1909 2,846,103 Maxwell Aug. 5, 1958 l FOREIGNPATENTS s 1,058,610 France Nov. 4, 1953v

